In the item description reads verbatim: "If food filled at about 80 degrees Celsius, this is even after 10 hours still about 40 degrees Celsius, normal drinks remain hot up to 8 hours."
I can not confirm. The box has failed us on the first try. After 2.5 hours, the slurry was not even lukewarm! Furthermore, the box after filling hot food is very warm outside within a short time. Definitely out waste of money.
